CVE-2019-8906 Explained : Impact and Mitigation
Learn about CVE-2019-8906, a vulnerability in the do_core_note function within libmagic.a library version 5.35, leading to an out-of-bounds read due to improper memcpy usage. Find mitigation steps and prevention measures here.
A vulnerability in the do_core_note function within the libmagic.a library version 5.35 can lead to an out-of-bounds read due to improper use of the memcpy function.
Understanding CVE-2019-8906
This CVE entry describes a specific vulnerability affecting the libmagic.a library version 5.35.
What is CVE-2019-8906?
The vulnerability in the do_core_note function within the readelf.c file in the libmagic.a library version 5.35 results in an out-of-bounds read due to the incorrect usage of the memcpy function.
The Impact of CVE-2019-8906
This vulnerability could potentially allow an attacker to read sensitive information from the affected system's memory, leading to a breach of confidentiality and potential exploitation.
Technical Details of CVE-2019-8906
This section provides more technical insights into the CVE-2019-8906 vulnerability.
Vulnerability Description
The vulnerability lies in the do_core_note function within the readelf.c file in the libmagic.a library version 5.35, where an out-of-bounds read occurs due to the misuse of the memcpy function.
Affected Systems and Versions
- Affected Version: libmagic.a library version 5.35
Exploitation Mechanism
The vulnerability can be exploited by crafting a specific input that triggers the out-of-bounds read, potentially leading to unauthorized access to sensitive data.
Mitigation and Prevention
To address CVE-2019-8906 and enhance system security, follow these mitigation strategies:
Immediate Steps to Take
- Apply patches provided by the vendor promptly.
- Monitor vendor advisories for updates and security patches.
- Implement proper input validation mechanisms to prevent buffer overflows.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Conduct security assessments and code reviews to identify and address vulnerabilities proactively.
Patching and Updates
- Check for security updates from the vendor regularly.
- Apply patches and updates as soon as they are available to mitigate the risk of exploitation.